/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 28779
 * Date: 2023-10-16
 * Time: 12:23
 */
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;

public class Demo1 {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        Callable<Integer> callable = new Callable<Integer>() {
            @Override
            public Integer call() throws Exception {
                int sum = 0;
                for (int i = 1; i <= 1000; i++) {
                    sum += i;
                }
                return sum;
            }
        };

        FutureTask<Integer> futureTask = new FutureTask<>(callable);
        Thread t = new Thread(futureTask);
        t.start();

        Integer result = futureTask.get();
        System.out.println(result);
    }
}
